# Arena interviews Amazon's Ido Rosen on AI unit economics and evaluation

> Original title: Arena Conversations: @idorosen, Senior Principal Scientist from @amazon, sat down with @petergostev to discuss practical elements of AI: ...

- Source: Arena
- Published: 2026-10-29T21:43:05.000Z
- Bad Influence: https://badinfluence.news/items/jbmqj36xcyi6jpjmo7coczyuf
- Original: https://x.com/arena/status/2115922394300989836

## Summary

Arena's conversation with Amazon Senior Principal Scientist Ido Rosen covers why unit economics should come first in AI deployment. Rosen also discusses what a decade in quant trading teaches about evaluation, and how frontier-lab pricing may change as open-weight models trail by only months.

## Post

Arena Conversations: @idorosen, Senior Principal Scientist from @amazon, sat down with @petergostev to discuss practical elements of AI: why unit economics should come first, what a decade in quant trading teaches you about evaluation, and what happens to frontier-lab pricing when open-weight models are only months behind.

Hear what Ido says it takes to deploy AI beyond benchmarks: in production, at scale, and on a budget.

https://www.youtube.com/live/PpnL6uY6mNI